CN113632548B

CN113632548B - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN113632548B
Application number: CN201980094931.3A
Authority: CN
Inventors: 徐伟杰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2023-11-07
Anticipated expiration: 2039-09-27
Also published as: CN113632548A; WO2021056383A1

Abstract

A method of wireless communication, a terminal device and a network device, the method comprising: the method comprises the steps that terminal equipment receives a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises timing deviation indication information; and the terminal equipment determines target timing deviation information according to the timing deviation indication information.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a wireless communication method, terminal equipment and network equipment.

Background

In a New Radio (NR) system, a terminal device may receive downlink control information (Downlink Control Information, DCI) scheduling a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) in a time slot n, and may then transmit the PUSCH in a time slot n '+k2, where K2 is a timing offset between the PUSCH and the PDCCH, and the time slot n' may be determined according to a subcarrier spacing of the PUSCH and the physical downlink control channel (Physical Downlink Control Channel, PDCCH).

In terrestrial cellular communication, the communication radius is generally small, and therefore, the path transmission delay of uplink and downlink communication is short, and therefore, the influence on the timing deviation K2 is small. In the NR system, a satellite communication manner is considered to provide a communication service for a terminal device, where a communication radius of the satellite communication is large, a path transmission delay is large, and an influence on a timing deviation K2 is generated.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which can dynamically inform the terminal equipment of timing deviation through a group public PDCCH.

In a first aspect, a method of wireless communication is provided, comprising: the method comprises the steps that terminal equipment receives a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises timing deviation indication information; and the terminal equipment determines target timing deviation information according to the timing deviation indication information.

In a second aspect, there is provided a method of wireless communication, comprising: the network equipment sends a group public Physical Downlink Control Channel (PDCCH) to the terminal equipment, wherein the group public PDCCH comprises timing deviation indication information which is used for the terminal equipment to determine target timing deviation information.

In a third aspect, a method of wireless communication is provided, comprising: the method comprises the steps that terminal equipment receives timing deviation indication information, wherein the timing deviation indication information corresponds to a reference subcarrier interval; and the terminal equipment determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal equipment.

In a fourth aspect, a terminal device is provided for performing the method of the first aspect or any possible implementation of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect, or comprises means for performing the method of the third aspect or any of the possible implementations of the third aspect.

In a fifth aspect, a network device is provided for performing the method of the second aspect or any possible implementation of the second aspect. In particular, the network device comprises means for performing the method of the second aspect or any of the possible implementations of the second aspect.

In a sixth aspect, there is provided a terminal device comprising: including a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and execute the computer program stored in the memory, perform the method in the first aspect or each implementation manner thereof, or perform the method in the third aspect or each implementation manner thereof.

In a seventh aspect, there is provided a network device comprising: including a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

An eighth aspect provides a chip for implementing the method of any one of the first to third aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to third aspects or implementations thereof described above.

A ninth aspect provides a computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of the above first to third aspects or implementations thereof.

In a tenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to third aspects or implementations thereof.

In an eleventh aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-described first to third aspects or implementations thereof.

Based on the technical scheme, the network equipment can realize more dynamic notification of timing deviation information to the terminal equipment by adopting the Group-common PDCCH, so that the method can adapt to rapid change of the distance and angle between the satellite and the terminal equipment in a satellite communication scene.

Drawings

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of the distances between the terminal devices and satellites at different locations.

Fig. 3 is a schematic diagram of a method of wireless communication provided by an embodiment of the present application.

Fig. 4 is a schematic diagram of another method of wireless communication provided by an embodiment of the present application.

Fig. 5 is a schematic diagram of yet another method of wireless communication provided by an embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication device provided in another embodiment of the present application.

Fig. 10 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, or 5G systems, and the like.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. "terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, direct terminal (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 illustrates one network device and two terminal devices by way of example, and the communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, as embodiments of the application are not limited in this regard.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

There may be the following timing deviations in the NR system:

1. timing offset between PUSCH and PDCCH

Assuming that the terminal device receives DCI scheduling PUSCH in time slot n, the terminal device transmits a time slot of PUSCH

2. Timing offset between PDSCH and PUCCH

If the terminal device receives a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled based on DCI format (format) 1_0 or DCI format1_1 in time slot n, or if the terminal device receives Semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH release signaling indicated by one DCI format1_0 transmitted through PDCCH in time slot n, the terminal device sends corresponding hybrid automatic request retransmission acknowledgement (Hybrid Automatic Repeat reQuest-ACKnowledge, HARQ-ACK) information in time slot n+k, where k is the number of time slots indicated by PDSCH to HARQ timing-domain (PDSCH-to-HARQ-timing-indicator) in DCI format, for example, 3 bits in DCI format1_0 for indicating 1 to 8 time slots, 4 bits in DCI format1_1 for indicating 1 to 16 time slots, or k may also be indicated by signaling downlink data to uplink feedback (dl-dataul-ACK).

3. Timing deviation of CSI reporting

The NR system supports aperiodic channel state information (Channel State Information, CSI) reporting and semi-persistent CSI reporting, both of which are activated/triggered by DCI and carried over PUSCH. The possible value of the time slot deviation between the PUSCH and the DCI for activating/triggering CSI reporting may be configured by a high-level signaling parameter, such as a report time slot deviation table (reportsloffsetlist), and the value range may be 0-32 time slots, and the actually used time slot deviation k is indicated by the DCI for activating/triggering CSI reporting.

4. Timing offset n of CSI reference resources _{CSI_ref}

The CSI reference resource is used for CSI measurement, which is an interference condition of a measurement serving cell, and in the time domain, the CSI reference resource that the terminal device can report CSI in the uplink timeslot n' is located in a separate downlink timeslotWherein mu _DL Sum mu _UL The downlink and uplink subcarrier spacing, respectively.

Non-terrestrial communication network (Non Terrestrial Network, NTN) technology based on 5G NR is currently being studied, where the NTN technology generally provides communication services to terrestrial users by means of satellite communication, and with respect to terrestrial cellular network communication, satellite communication is not limited by the region of the user, and for general terrestrial communication, areas where communication devices cannot be set up or are not covered due to rarity of population, can be covered by satellites, and satellites can orbit around the earth, so that basically every corner on the earth can be covered by satellite communication.

In satellite communication scenarios, both the downlink (link from satellite to terminal device) and the uplink (link from terminal device to satellite) have long path propagation delays, typically one-way propagation delays of several microseconds for low orbit satellites and several hundred microseconds for geosynchronous orbit satellites, which delays are already not negligible for the above-mentioned timing deviations, so how to perform timing deviation adjustment is a problem to be solved.

Fig. 3 is a schematic flow chart of a method 200 for wireless communication according to an embodiment of the present application. The method 200 may be performed by a terminal device in the communication system shown in fig. 1, and as shown in fig. 3, the method 200 may include at least part of the following:

s210, terminal equipment receives a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises timing deviation indication information;

s220, the terminal equipment determines target timing deviation information according to the timing deviation indication information.

Therefore, in the embodiment of the application, the Group-common PDCCH is adopted to more dynamically inform the terminal equipment of the timing deviation, so that the rapid change of the distance between the satellite and the terminal equipment in the satellite communication scene can be adapted.

It should be understood that, in the embodiment of the present application, the network device may notify the timing deviation indication information through other dynamic signaling, which is not limited by the embodiment of the present application.

In the embodiment of the application, the timing deviation indication information may be used to determine the target timing deviation information, and the target timing deviation (denoted as k_offset) may be a propagation delay caused by a propagation path between the network device and the terminal device, or may be called as a compensation timing deviation.

In some embodiments, the timing deviation indication information may comprise a one-way propagation delay between the network device and the terminal device, such as an uplink propagation delay, or a downlink propagation delay, and in other embodiments, the timing deviation indication information may comprise a round trip propagation delay between the network device and the terminal device, such as a sum of the uplink propagation delay and the downlink propagation delay. Hereinafter, timing deviation indication information is described as an example of one-way propagation delay.

Alternatively, in the embodiment of the present application, the target timing offset information k_offset may be used to compensate for at least one of the following timing offsets:

timing offset K2 between PUSCH and physical downlink control channel (Physical Downlink Control Channel, PDCCH);

A timing offset k between a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and a physical uplink control channel (Physical Uplink Control Channel, PUCCH);

timing offset for reporting channel state information (Channel State Information, CSI);

timing offset of CSI reference resources.

For the timing deviation K2 between the PDCCH and the PUSCH, the network device sends the PDCCH to the terminal device in the time slot n, the terminal device receives the PDCCH after undergoing k_offset1, if the PDCCH indicates the terminal device to send the PUSCH in the time slot n+k2, the terminal device can send the PUSCH according to the timing deviation K2, the PUSCH needs to undergo k_offset1 to reach the network device, and the network device expects to receive the PUSCH in the time slot n+k2+2k_offset1. Therefore, in the embodiment of the present application, based on the timing deviation K2, the network device further notifies the terminal device of k_offset1, so that the terminal device can adjust the transmission timing of the PUSCH according to the timing deviation K2 and k_offset1, so that the network device receives the PUSCH in the time slot n+k2+2k_offset1.

For the timing of the terminal device side, if the terminal device receives the PDCCH sent by the network device in the time slot n, the PDCCH indicates the terminal device to send the PUSCH in the time slot n+k2, and the network device expects to receive the PUSCH in the time slot n+k2+k_offset1 because the PUSCH needs to undergo k_offset1 to reach the network device. Therefore, in the embodiment of the present application, based on the timing deviation K2, the network device further notifies the terminal device of k_offset1, so that the terminal device can adjust the transmission timing of the PUSCH according to the timing deviation K2 and k_offset1, so that the network device receives the PUSCH in the time slot n+k2+k_offset 1.

Similarly, corresponding to the timing offset K1 between the PUCCH and the PDSCH, if the terminal device receives the PDSCH scheduled based on the DCI format 1_0 or the DCI format 1_1 in the slot n, or receives the SPS PDSCH release signaling indicated by one DCI format 1_0 transmitted through the PDCCH in the slot n, the terminal device may transmit the PUCCH for carrying HARQ-ACK information of the PDSCH based on the timing offset K1, which needs to undergo k_offset2 to reach the network device due to a larger path propagation delay in the satellite communication scenario, and the network device expects to receive the PUCCH in the slot n+k1+k_offset2. Therefore, on the basis of the timing deviation K1, the network device further notifies the terminal device of k_offset2, so that the terminal device can adjust the transmission timing of the PUCCH according to the timing deviations K1 and k_offset2, so that the network device receives the PUSCH in the time slot n+k1+k_offset2.

Similarly, for the timing deviation K between the PUSCH carrying CSI feedback and the DCI activating/triggering CSI reporting, if the terminal device receives the DCI indication activating/triggering CSI reporting in the time slot n, the terminal device may report CSI based on the timing deviation K, and in the satellite communication scenario, since the path propagation delay is larger, the CSI reported by the terminal device needs to undergo k_offset3 to reach the network device, and the network device expects to receive the CSI in the time slot n+k+k_offset3. Therefore, in the embodiment of the present application, based on the timing offset K, the network device further notifies the terminal device of k_offset3, so that the terminal device can adjust the sending timing of the CSI according to the timing offset K and k_offset3, so that the network device receives the CSI in the time slot n+k+k_offset3.

Similarly, for the timing deviation of the CSI reference resource, if the network device receives the CSI report of the terminal device in the time slot n, since in the satellite communication scenario, the path propagation delay is larger, the CSI reported by the terminal device needs to go through k_offset4 to reach the network device, so in the embodiment of the present application, the timing deviation n is that _{CSI_ref} On the basis of (a), the network device further informs the terminal device of k_offset4 so that the terminal device can follow the timing offset n _{CSI_ref} And K_offset4 adjusts the timing of the CSI reference resources, e.g., to n-n _{CSI_ref} -k_offset4 to enable the network device to receive CSI reported by said terminal device in time slot n.

It should be understood that the above example is described by taking the example that the intervals of the uplink and downlink subcarriers are the same, and when the intervals of the uplink and downlink subcarriers are different, the adjustment can be performed according to the relationship between the intervals of the uplink and downlink subcarriers.

It should be noted that, in the embodiment of the present application, k_offset used for compensating the above four timing offsets may be the same, that is, k_ffset 1, k_ffset 2, k_ffset 3 and k_ffset 4 may be equal, or the above four timing offsets may be compensated with different k_offsets, in which case the different k_offsets may be notified through one Group-common PDCCH, or may be notified through multiple Group-common PDCCHs, respectively.

In the embodiment of the application, the Group-common physical downlink control channel (Physical Downlink Control Channel, PDCCH) may be sent towards a specific terminal Group. I.e. the timing deviation indication information is applicable to the specific terminal group. The specific terminal group may be a terminal group to which the terminal device belongs.

In some embodiments, the specific terminal group may include:

all terminal devices within a satellite cell;

a group of terminals within a satellite cell;

all terminal devices within one satellite beam;

a group of terminals within a satellite beam.

Alternatively, in an embodiment of the present application, one satellite cell may be covered by multiple satellite beams.

In some embodiments, the Group-common PDCCH is scrambled by a dedicated radio network temporary identifier (Radio Network Temporary Identity, RNTI). That is, the dedicated RNTI may be used to scramble a Group-common PDCCH carrying the timing offset indication information, and the Group-common PDCCH carrying other information is not scrambled using the dedicated RNTI.

The dedicated RNTI may be predefined or may be configured by a network device, e.g. the network device may configure the dedicated RNTI to the terminal device via higher layer signaling.

Alternatively, the higher layer signaling may be radio resource control (Radio Resource Control, RRC) dedicated signaling, a system broadcast message or a medium access control element (Media Access Control Control Element, MAC CE), or may be configured by other signaling, which is not limited by the embodiment of the present application.

In other embodiments, the dedicated RNTI may be an RNTI for the specific terminal Group, that is, a Group-common PDCCH transmitted for the specific terminal Group may be scrambled by the dedicated RNTI, and a Group-common PDCCH transmitted for other terminal groups may be scrambled using other terminal Group-dedicated RNTIs.

In the embodiment of the application, the Group-common PDCCH can be periodically transmitted, namely, the terminal equipment can periodically receive the Group-common PDCCH, and the network equipment can rapidly inform the terminal equipment of the timing deviation indication information by periodically transmitting the Group-common PDCCH, so that the method is beneficial to adapting to rapid change of the distance between a satellite and the terminal equipment in a satellite communication scene.

In some embodiments, the transmission period of the Group-common PDCCH and the time domain position within the transmission period are predefined or configured by a network device, e.g., may be configured by higher layer signaling. Alternatively, the higher layer signaling may be RRC dedicated signaling, system broadcast messages, or signaling such as MAC CE.

Alternatively, in some embodiments, the time units of the timing offset indicated by the timing offset indication information may be predefined or configured by the network device, for example by higher layer signaling. Alternatively, the higher layer signaling may be RRC dedicated signaling, system broadcast messages, MAC CEs, or the like.

Alternatively, in some embodiments, the time units may be one or more milliseconds, or one or more time slots, or may be other time units, which embodiments of the present application do not limit.

As an example, if the timing offset indicated by the timing offset indication information takes a value of k_offset, the terminal device may multiply the k_offset by the time unit as the target timing offset information. For example, if the timing deviation indication information has a value of 60 and the time unit is 5ms, the terminal device may determine that the target timing deviation information is 300ms.

Hereinafter, a specific implementation of the timing deviation indication information will be described with reference to specific embodiments.

Embodiment one: the timing deviation indication information includes common timing deviation information for the group.

I.e. the network device may inform the terminal device of the common timing offset information of the Group through the Group-common PDCCH.

Wherein the group may be the aforementioned specific terminal group.

Alternatively, in some embodiments, the common timing offset information of the Group may be carried in a specific information field in DCI of a Group-common PDCCH, and the terminal device may acquire the common timing offset information of the Group from the specific information field of the DCI.

In some embodiments, the common timing offset information for the group may be determined based on a particular terminal location within the coverage area of the network device.

For example, the specific terminal location may be a terminal location closest to the network device, such as the location of UE1 shown in fig. 2, and the common timing offset information of the group may be a timing offset corresponding to UE1, where the timing offset corresponding to UE1 may be a path propagation delay between UE1 and the network device.

For another example, the specific terminal location may be a terminal location farthest from the network device, such as a location of UE2 shown in fig. 2, and the common timing offset information of the group may be a timing offset corresponding to UE2, where the timing offset corresponding to UE2 may be a path propagation delay between UE2 and the network device.

In this embodiment one, the terminal device in the Group may determine the common timing offset information of the Group included in the Group-common PDCCH as the target timing offset information, and further, the terminal device may adjust the timing of a signal or channel to be transmitted based on the common timing offset information of the Group.

In some embodiments, the network device may also notify the timing deviation indication information through system information, before the Group-common PDCCH is not received, the terminal device may determine the target timing deviation information according to the timing deviation indication information in the system information, after the Group-common PDCCH is received, the terminal device may determine the target timing deviation information according to the timing deviation indication information carried by the Group-common PDCCH.

In other embodiments, if the terminal device receives multiple Group-common PDCCHs, the terminal device may determine the target timing offset information according to the Group-common PDCCH received recently, that is, the previously received Group-common PDCCH is not used any more to determine the target timing offset information.

Embodiment two: the timing deviation indication information includes a timing deviation adjustment amount, which may be an adjustment amount with respect to common timing deviation information of the group, wherein the timing deviation adjustment amount may be a timing deviation adjustment amount with respect to the group.

Alternatively, the timing deviation indication information includes a timing deviation adjustment amount of each of the plurality of terminal devices, which may be an adjustment amount with respect to the common timing deviation information of the group.

It should be appreciated that in this second embodiment, the common timing offset information for the Group may be obtained from system information or may also be obtained from the Group-common PDCCH.

In one possible implementation, the terminal device may determine the target timing offset information based on the common timing offset information of the group and the timing offset adjustment. For example, the terminal device may determine the sum of the common timing deviation information of the group and the timing deviation adjustment amount as the target timing deviation information.

Assuming that the system information carries the common timing offset information k_offset of the Group and the Group-common PDCCH carries the timing offset adjustment amount delta_k_offset, the terminal device may determine the sum of the common timing offset information of the Group and the timing offset adjustment amount, that is, k_offset+delta_k_offset, as the target timing offset information.

In another possible implementation, if the timing offset indication information includes a timing offset adjustment amount for each of a plurality of terminal devices, the terminal device may determine the target timing offset information according to the common timing offset information of the group and a timing offset adjustment amount (delta_k_offset_ue) of the terminal device. For example, the terminal device may determine the sum of the common timing offset information of the group and the timing offset adjustment amount delta_k_offset_ue of the terminal device, i.e., k_offset+delta_k_offset_ue, as the target timing offset information.

In other alternative implementations, the terminal device may also determine the target timing offset information according to the common timing offset information k_offset of the group, the timing offset adjustment delta_k_offset, and the timing offset adjustment delta_k_offset_ue of the terminal device.

For example, the terminal device may determine common timing deviation information of the group, a sum of the timing deviation adjustment amount and the timing deviation adjustment amount of the terminal device as the target timing deviation information.

Therefore, in the embodiment of the application, the network device can inform the terminal device of the timing deviation information through the combination of the system information and the Group-common PDCCH, so that the terminal device can acquire the K_offset of the terminal Group immediately after reading the system information, and further the network device can inform the terminal device of the timing deviation adjustment delta_K_offset more dynamically through the Group-common PDCCH, thereby being beneficial to adapting to the rapid change of the distance between the satellite and the terminal device in the satellite communication scene. Further, the network device may also notify the terminal device of the dedicated timing offset adjustment amount, so that more accurate UE-level timing offset adjustment can be achieved.

In some embodiments, the terminal device may determine the target timing offset information according to a timing offset adjustment amount in the recently received Group-common PDCCH and a historical accumulated timing offset adjustment amount of the terminal device. The historical accumulated timing deviation adjustment amount of the terminal device may be an accumulated value of timing deviation adjustment amounts in a Group-common PDCCH received before the terminal device.

For example, when the terminal device receives the Group-common PDCCH for the nth time, the historical accumulated timing deviation adjustment amount of the terminal device is k_n, and when the Group-common PDCCH is received for the n+1th time, if the timing deviation adjustment amount of the terminal device carried in the Group-common PDCCH is k_new, at this time, the terminal device may determine that the target timing deviation information is k_n+k_new, and at this time, the historical accumulated timing deviation adjustment amount of the terminal device is k_n+1=k_n+k_new.

It should be noted that, in the embodiment of the present application, the historical accumulated timing deviation adjustment amount may be terminal equipment granularity, or may also be terminal Group granularity, that is, the terminal equipment may determine the target timing deviation information according to the timing deviation adjustment amount for the terminal Group in the Group-common PDCCH in combination with the historical accumulated timing deviation adjustment amount of the terminal Group.

In some embodiments, if the implementing terminal device receives other signaling of the network device, the other signaling also carries timing deviation adjustment amounts of the terminal device, and the terminal device may also respectively count the timing deviation adjustment amounts in the other signaling into the historical accumulated timing deviation adjustment amounts for determining the target timing deviation information.

In some embodiments of the present application, the network device may notify the location information of the timing offset information of each of the plurality of terminal devices in the DCI of the Group-common PDCCH, so that each of the plurality of terminal devices may obtain the timing offset information of each of the plurality of terminal devices according to the location information. Optionally, the network device may further notify the total length of the information bits occupied by the timing offset information of the plurality of terminal devices, and the total length is used for the terminal devices to demodulate the Group-common PDCCH to obtain the timing offset information of each terminal device.

Alternatively, the network device may inform the position information of the timing offset information of each of the plurality of terminal devices in the DCI of the Group-common PDCCH through higher layer signaling. By way of example and not limitation, the higher layer signaling may be RRC dedicated signaling, system broadcast messages or MAC CEs. As an example, the location information of the timing offset information of each terminal device in the DCI of the Group-common PDCCH may include a location number of the timing offset information of each terminal device in the DCI. The position number may be used to indicate a starting position and a length.

Embodiment III: timing deviation indication information corresponds to reference subcarrier spacing

In the third embodiment, the timing deviation indication information may be obtained from system information, or may also be obtained from a Group-common PDCCH, or may also be obtained from other signaling, for example, RRC signaling, which is not limited by the embodiment of the present application.

In some embodiments, the network device may configure a plurality of Bandwidth parts (BWP) for the terminal device, and may configure different subcarrier intervals for the plurality of BWP, in the foregoing embodiments, the system information or the Group-common PDCCH may notify only one timing deviation indication information, which may correspond to a reference subcarrier interval, and further, the terminal device may determine target timing deviation information according to the timing deviation indication information and a relationship between a currently used subcarrier interval and the reference subcarrier interval.

Optionally, in some embodiments, the reference subcarrier spacing may be predefined, or may also be configured by a network device, for example, the network device may be configured by higher layer signaling, where the higher layer signaling may be RRC dedicated signaling, a system broadcast message, or MAC CE, and the reference subcarrier spacing is notified by system broadcast information or RRC signaling, which is beneficial to improve flexibility of system indication. In some embodiments, the network device may select an appropriate reference subcarrier spacing according to information such as a frequency band of operation, a subcarrier configuration of BWP, and the like.

Alternatively, in other embodiments, the reference subcarrier spacing may be determined according to a subcarrier spacing of a synchronization signal Block (synchronizing signal/PBCH Block, SSB, SS Block, or SS/PBCH Block), e.g., the subcarrier spacing of the SSB may be determined as the reference subcarrier spacing.

In other embodiments, the reference subcarrier spacing may be determined according to a subcarrier spacing of a system broadcast message, for example, the subcarrier spacing of the system broadcast message may be determined as the reference subcarrier spacing, or may be determined according to a subcarrier spacing of an initial downlink BWP, for example, the subcarrier spacing of the initial downlink BWP may be determined as the reference subcarrier spacing, and the manner of determining the reference subcarrier spacing in the embodiments of the present application is not limited in detail.

Further, the terminal device may determine target timing deviation information according to the timing deviation indication information and a relationship between a currently used subcarrier interval and the reference subcarrier interval.

Specifically, the terminal device may determine the first timing deviation information according to the timing deviation indication information, and specific implementation may refer to the description related to determining the target timing deviation information according to the timing deviation indication information in the first embodiment and the second embodiment, which is not repeated herein for brevity.

As an example, the timing deviation indication information includes common timing deviation information for the group, in which case the terminal device may determine the common timing deviation information of the group as the first timing deviation information. Taking the timing between PDCCH and PUSCH as an example, if the common timing deviation information of the group is 60 and the time unit is 5ms, the target timing deviation may be determined to be 300ms, and if the terminal device receives PDCCH in the time slot n, further, the terminal device may adjust the transmission timing of PUSCH based on the timing deviation K2 between PDCCH and PUSCH and the target timing deviation 300, so that the network device receives the PUSCH at a desired time (i.e. time slot n+k2+300 ms).

As another example, the timing deviation indication information includes a timing deviation adjustment amount, wherein the timing deviation adjustment amount is an adjustment amount with respect to first common timing deviation information of the group, in which case the terminal device may determine the first timing deviation information from the timing deviation adjustment amount and the first common timing deviation information of the group, for example, the terminal device may determine a sum of the timing deviation adjustment amount and the first common timing deviation information of the group as the first timing deviation information. It should be noted that the first common timing offset information of the Group herein may be obtained from system information or may also be obtained from the Group-common PDCCH.

Taking the timing between PDCCH and PUSCH as an example, if the first common timing deviation information of the group is 60, the time unit is 5ms, the timing deviation adjustment amount is 10, and the time unit is 1ms, it may be determined that the target timing deviation is 310ms, and if the terminal device receives PDCCH in the time slot n, further, the terminal device may adjust the transmission timing of PUSCH based on the timing deviation K2 between PDCCH and PUSCH and the target timing deviation 310, so that the network device receives the PUSCH at a desired time (i.e. time slot n+k2+310 ms).

Further, the terminal device may determine the target timing deviation information according to the first timing deviation information in combination with a relationship between a subcarrier interval currently used by the terminal device and the reference subcarrier interval. For example, a result of multiplying the first timing deviation information by a specific ratio of a currently used subcarrier interval and the reference subcarrier interval is determined as the target timing deviation information.

For example, if the reference subcarrier spacing is 15KHz, a timing offset of k_offset is indicated for 15KHz slots. Taking the timing between PDCCH and PUSCH as an example, if the uplink BWP where the terminal device is currently operating is 30KHz, the target timing offset is 30/15×k_offset=2×k_offset for 30KHz slots.

Therefore, in the embodiment of the present application, the network device can enable the terminal device to obtain accurate timing deviation information according to the subcarrier interval of the current operation by notifying the terminal device or the reference subcarrier interval corresponding to the predefined timing deviation k_offset.

The method of wireless communication according to an embodiment of the present application is described in detail above in connection with fig. 3 from the perspective of a terminal device, and the method of wireless communication according to another embodiment of the present application is described in detail below in connection with fig. 4 from the perspective of a network device. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions may be referred to above, and are not repeated here for avoiding repetition.

Fig. 4 is a schematic flow chart of a method 300 of wireless communication according to another embodiment of the present application, the method 300 being executable by a network device in the communication system shown in fig. 1, as shown in fig. 4, the method 300 comprising:

s310, the network equipment sends a group public physical downlink control channel PDCCH to the terminal equipment, wherein the group public PDCCH comprises timing deviation indication information, and the timing deviation indication information is used for determining target timing deviation information by the terminal equipment.

Optionally, in some embodiments, the timing deviation indication information includes at least one of: common timing offset information for the group;

a timing deviation adjustment amount that is an adjustment amount with respect to the first common timing deviation information of the group.

Optionally, in some embodiments, the first common timing offset information of the group is obtained from the group PDCCH or from system information.

Optionally, in some embodiments, the timing offset indicated by the timing offset indication information corresponds to a reference subcarrier spacing.

Optionally, the group public PDCCH is scrambled by a private radio network temporary identifier RNTI.

Optionally, the dedicated RNTI is predefined or configured by the network device.

Optionally, in some embodiments, the dedicated RNTI is an RNTI for a particular terminal group.

Optionally, the network device sends a group common physical downlink control channel PDCCH to the terminal device, including:

the network device periodically transmits the group common PDCCH.

Optionally, a transmission period of the group common PDCCH and/or a time domain position within the transmission period is predefined or configured by the network device.

Optionally, the target timing offset information is used to compensate for at least one of the following timing offsets:

timing deviation between Physical Uplink Shared Channel (PUSCH) and physical uplink shared channel (PDCCH);

timing deviation between a physical downlink shared channel PDSCH and a physical uplink control channel PUCCH;

timing deviation between a PUSCH and Downlink Control Information (DCI) which triggers reporting of Channel State Information (CSI);

timing offset of CSI reference resources.

Fig. 5 is a schematic flow chart of a method 400 of wireless communication according to yet another embodiment of the present application, the method 400 being executable by a terminal device in the communication system shown in fig. 1, the method 400 comprising, as shown in fig. 5:

s410, the terminal equipment receives timing deviation indication information, wherein the timing deviation indication information corresponds to a reference subcarrier interval;

s420, the terminal equipment determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal equipment.

In this embodiment, the timing deviation indication information may be acquired through system information or may be acquired from a Group-common PDCCH, which is not limited in the embodiment of the present application.

Optionally, in some embodiments, the determining, by the terminal device, the target timing deviation information according to the timing deviation indication information and a subcarrier interval currently used by the terminal device includes:

the terminal equipment determines first timing deviation information according to the timing deviation indication information;

and the terminal equipment determines the target timing deviation information according to the first timing deviation information and the relation between the subcarrier interval currently used by the terminal equipment and the reference subcarrier interval.

It should be understood that, for specific implementation of determining the first timing deviation information by the terminal device according to the timing deviation indication information, reference may be made to the description related to determining the target timing deviation information according to the timing deviation indication information in the first embodiment and the second embodiment, which is not repeated herein for brevity.

As an example, the timing deviation indication information includes common timing deviation information for the group, in which case the terminal device may determine the common timing deviation information of the group as the first timing deviation information.

As another example, the timing deviation indication information includes a timing deviation adjustment amount, wherein the timing deviation adjustment amount is an adjustment amount with respect to first common timing deviation information of the group, in which case the terminal device may determine the first timing deviation information from the timing deviation adjustment amount and the first common timing deviation information of the group, for example, the terminal device may determine a sum of the timing deviation adjustment amount and the first common timing deviation information of the group as the first timing deviation information.

Optionally, in some embodiments, the determining, by the terminal device, the target timing deviation information according to the first timing deviation information and a relationship between a subcarrier interval currently used by the terminal device and the reference subcarrier interval includes:

the terminal equipment determines the result of multiplying the first timing deviation information by a specific ratio as the target timing deviation information, wherein the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

Optionally, in some embodiments, the reference subcarrier spacing is predefined, the network device is configured to determine from the subcarrier spacing of the synchronization signal block SSB, from the subcarrier spacing of the system message, from the subcarrier spacing of the initial downlink bandwidth portion BWP.

Optionally, in some embodiments, the terminal device receives timing deviation indication information, including:

and the terminal equipment receives a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises the timing deviation indication information.

Optionally, in some embodiments, the group public PDCCH is scrambled by a private radio network temporary identifier RNTI.

Optionally, in some embodiments, the dedicated RNTI is predefined or configured by a network device.

Optionally, in some embodiments, the terminal device receives a group common physical downlink control channel PDCCH, including:

the terminal device periodically receives the group common PDCCH.

Optionally, in some embodiments, the transmission period and/or the time domain position within the transmission period of the group common PDCCH is predefined or configured by a network device.

Optionally, in some embodiments, the target timing offset information is used to compensate for at least one of the following timing offsets:

timing offset of CSI reference resources.

The method embodiments of the present application are described in detail above with reference to fig. 3 to 5, and the apparatus embodiments of the present application are described in detail below with reference to fig. 6 to 11, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

Fig. 6 shows a schematic block diagram of a terminal device 500 according to an embodiment of the application. As shown in fig. 6, the terminal device 500 includes:

a communication module 510, configured to receive a group common physical downlink control channel PDCCH, where the group common PDCCH includes timing deviation indication information;

a determining module 520, configured to determine target timing deviation information according to the timing deviation indication information.

Optionally, in some embodiments, the timing deviation indication information includes common timing deviation information for the group, and the determining module 520 is specifically configured to:

the common timing offset information of the group is determined as the target timing offset information.

Optionally, in some embodiments, the timing deviation indication information includes the timing deviation adjustment amount, and the determining module is specifically configured to:

and determining the sum of the first common timing deviation information of the group and the timing deviation adjustment amount as the target timing deviation information.

Optionally, in some embodiments, the determining module 520 is further configured to:

and determining the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal equipment.

Optionally, in some embodiments, the determining module 520 is specifically configured to:

determining first timing deviation information according to the timing deviation indication information, wherein the first timing deviation information corresponds to a reference subcarrier interval;

And determining the target timing deviation information according to the first timing deviation information and the relation between the subcarrier interval currently used by the terminal equipment and the reference subcarrier interval.

and determining the result of multiplying the first timing deviation information by a specific ratio as the target timing deviation information, wherein the specific ratio is the ratio of the currently used subcarrier interval to the reference subcarrier interval.

Optionally, in some embodiments, the reference subcarrier spacing is predefined, configured by the network device, determined from the subcarrier spacing of the synchronization signal block SSB, determined from the subcarrier spacing of the system message, or determined from the subcarrier spacing of the initial downlink bandwidth portion BWP.

Optionally, in some embodiments, the communication module is specifically configured to: the group common PDCCH is periodically received.

timing offset of CSI reference resources.

Alternatively, in some embodiments, the communication module may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The determination module may be one or more processors.

It should be understood that the terminal device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 500 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 3, and are not described herein for brevity.

Fig. 7 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 600 of fig. 7 includes:

a communication module 610, configured to send a group common physical downlink control channel PDCCH to a terminal device, where the group common PDCCH includes timing offset indication information, where the timing offset indication information is used by the terminal device to determine target timing offset information.

Optionally, in some embodiments, the timing deviation indication information includes at least one of:

common timing offset information for the group;

Optionally, in some embodiments, the communication module is specifically configured to: and periodically transmitting the group public PDCCH.

Optionally, in some embodiments, a transmission period of the set of common PDCCHs and/or a time domain position within the transmission period is predefined or configured by the network device.

timing offset of CSI reference resources.

It should be understood that the network device 600 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 600 are respectively for implementing the corresponding flow of the network device in the method 300 shown in fig. 4, and are not described herein for brevity.

Fig. 8 shows a schematic block diagram of a terminal device 1000 according to an embodiment of the application. As shown in fig. 8, the terminal device 1000 includes:

a communication module 1010, configured to receive timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier spacing;

and a determining module 1020, configured to determine the target timing deviation information according to the timing deviation indication information and a subcarrier interval currently used by the terminal device.

Optionally, in some embodiments, the determining module 1020 is specifically configured to:

determining first timing deviation information according to the timing deviation indication information;

common timing offset information for the group;

Optionally, in some embodiments, the communication module 1010 is further configured to:

and receiving a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises the timing deviation indication information.

Optionally, the terminal device receives a group common physical downlink control channel PDCCH, including:

the terminal device periodically receives the group common PDCCH.

timing offset of CSI reference resources.

It should be understood that the terminal device 1000 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 1000 are respectively for implementing the corresponding flow of the terminal device in the method 400 shown in fig. 5, and are not described herein for brevity.

Fig. 9 is a schematic block diagram of a communication device 700 according to an embodiment of the present application. The communication device 700 shown in fig. 9 comprises a processor 710, from which the processor 710 may call and run a computer program to implement the method in an embodiment of the application.

Optionally, as shown in fig. 9, the communication device 700 may further comprise a memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, as shown in fig. 9, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Among other things, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, the number of which may be one or more.

Optionally, the communication device 700 may be specifically a network device according to an embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the network device in each method according to an embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 700 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the mobile terminal/terminal device in each method according to an embodiment of the present application, which is not described herein for brevity.

Fig. 10 is a schematic structural view of a chip of an embodiment of the present application. The chip 800 shown in fig. 10 includes a processor 810, and the processor 810 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, chip 800 may also include a memory 820. Wherein the processor 810 may call and run a computer program from the memory 820 to implement the method in embodiments of the present application.

Wherein the memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, the chip 800 may also include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 11 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in fig. 11, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the method comprises the steps that terminal equipment receives a group public Physical Downlink Control Channel (PDCCH), wherein the group public PDCCH comprises timing deviation indication information, and the timing deviation indication information comprises at least one of the following steps: common timing offset information for the group, timing offset adjustment; the group is a specific terminal group, and the group public PDCCH is sent towards the specific terminal group; the common timing deviation information of the group is determined based on a specific terminal position within the coverage area of the network device, wherein the specific terminal position is the terminal position closest to or farthest from the network device, and the timing deviation adjustment amount is the adjustment amount relative to the first common timing deviation information of the group;

the terminal equipment determines target timing deviation information according to the timing deviation indication information, wherein the target timing deviation information is used for compensating at least one of the following timing deviations:

timing deviation between the PUSCH and the downlink control information DCI triggering the reporting of the Channel State Information (CSI).

2. The method of claim 1, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

3. The method of claim 1, wherein the timing deviation indication information comprises common timing deviation information for the group, and wherein the terminal device determines target timing deviation information based on the timing deviation indication information, comprising:

the terminal device determines common timing offset information of the group as the target timing offset information.

4. The method according to claim 1, wherein the timing deviation indication information includes the timing deviation adjustment amount, and the terminal device determines target timing deviation information based on the timing deviation indication information, including:

the terminal device determines the sum of the first common timing deviation information of the group and the timing deviation adjustment amount as the target timing deviation information.

5. The method according to claim 1, wherein the determining, by the terminal device, target timing deviation information based on the timing deviation indication information, comprises:

and the terminal equipment determines the target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal equipment.

6. The method of claim 5, wherein the determining, by the terminal device, the target timing offset information based on the timing offset indication information and a subcarrier spacing currently used by the terminal device, comprises:

the terminal equipment determines first timing deviation information according to the timing deviation indication information, wherein the first timing deviation information corresponds to a reference subcarrier interval;

7. The method according to claim 6, wherein the determining, by the terminal device, the target timing offset information according to the first timing offset information and a relationship between a subcarrier spacing currently used by the terminal device and the reference subcarrier spacing, includes:

8. The method according to claim 6, characterized in that the reference subcarrier spacing is predefined, configured by the network device, determined from the subcarrier spacing of the synchronization signal block SSB, determined from the subcarrier spacing of the system message, or determined from the subcarrier spacing of the initial downlink bandwidth portion BWP.

9. The method of claim 1, wherein the group common PDCCH is scrambled by a private radio network temporary identifier, RNTI.

10. The method of claim 9, wherein the dedicated RNTI is predefined or configured by a network device.

11. The method of claim 9, wherein the dedicated RNTI is an RNTI for a particular terminal group.

12. The method according to any of claims 1 to 11, wherein the terminal device receives a group common physical downlink control channel, PDCCH, comprising:

The terminal device periodically receives the group common PDCCH.

13. The method of claim 12, wherein a transmission period and/or a time domain position within a transmission period of the set of common PDCCHs is predefined or configured by a network device.

14. A method of wireless communication, comprising:

the network equipment sends a group public Physical Downlink Control Channel (PDCCH) to the terminal equipment, wherein the group public PDCCH comprises timing deviation indication information which is used for the terminal equipment to determine target timing deviation information;

the timing deviation indication information includes at least one of: common timing offset information for the group, timing offset adjustment; the group is a specific terminal group, and the group public PDCCH is sent towards the specific terminal group; the common timing deviation information of the group is determined based on a specific terminal position within the coverage area of the network device, wherein the specific terminal position is the terminal position closest to or farthest from the network device, and the timing deviation adjustment amount is the adjustment amount relative to the first common timing deviation information of the group;

the target timing offset information is used to compensate for at least one of the following timing offsets:

15. The method of claim 14, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

16. The method of claim 14, wherein the timing offset indicated by the timing offset indication information corresponds to a reference subcarrier spacing.

17. The method of claim 14, wherein the group common PDCCH is scrambled by a private radio network temporary identifier, RNTI.

18. The method of claim 17, wherein the dedicated RNTI is predefined or configured by a network device.

19. The method of claim 17, wherein the dedicated RNTI is an RNTI for a particular terminal group.

20. The method of claim 14, wherein the network device sends a group common physical downlink control channel, PDCCH, to the terminal device, comprising:

The network device periodically transmits the group common PDCCH.

21. The method of claim 20, wherein a transmission period of the set of common PDCCHs and/or a time domain position within the transmission period is predefined or configured by the network device.

22. A method of wireless communication, comprising:

the terminal equipment receives timing deviation indication information, wherein the timing deviation indication information corresponds to a reference subcarrier interval, and the timing deviation indication information comprises at least one of the following components: common timing offset information for the group, timing offset adjustment; the group is a specific terminal group, and the group public PDCCH is sent towards the specific terminal group; the common timing deviation information of the group is determined based on a specific terminal position within the coverage area of the network device, wherein the specific terminal position is the terminal position closest to or farthest from the network device, and the timing deviation adjustment amount is the adjustment amount relative to the first common timing deviation information of the group;

the terminal equipment determines target timing deviation information according to the timing deviation indication information and the subcarrier interval currently used by the terminal equipment, wherein the target timing deviation information is used for compensating at least one of the following timing deviations:

23. The method of claim 22, wherein the determining, by the terminal device, the target timing offset information based on the timing offset indication information and the subcarrier spacing currently used by the terminal device, comprises:

24. The method of claim 23, wherein the determining, by the terminal device, the target timing offset information based on the first timing offset information and a relationship between a subcarrier spacing currently used by the terminal device and the reference subcarrier spacing, comprises:

25. The method according to claim 22, characterized in that the reference subcarrier spacing is predefined, the network device is configured to determine from the subcarrier spacing of the synchronization signal block SSB, from the subcarrier spacing of the system message, from the subcarrier spacing of the initial downlink bandwidth part BWP.

26. The method of claim 22, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

27. The method of claim 22, wherein the terminal device receives timing offset indication information, comprising:

28. The method of claim 27, wherein the group common PDCCH is scrambled by a private radio network temporary identifier, RNTI.

29. The method of claim 28, wherein the dedicated RNTI is predefined or configured by a network device.

30. The method of claim 28, wherein the dedicated RNTI is an RNTI for a particular terminal group.

31. The method according to any of the claims 27 to 30, wherein the terminal device receives a group common physical downlink control channel, PDCCH, comprising:

the terminal device periodically receives the group common PDCCH.

32. The method of claim 31, wherein a transmission period and/or a time domain position within the transmission period of the set of common PDCCHs is predefined or configured by a network device.

33. A terminal device, comprising:

a communication module, configured to receive a group common physical downlink control channel PDCCH, where the group common PDCCH includes timing deviation indication information, and the timing deviation indication information includes at least one of the following: common timing offset information for the group, timing offset adjustment; the group is a specific terminal group, and the group public PDCCH is sent towards the specific terminal group; the common timing deviation information of the group is determined based on a specific terminal position within the coverage area of the network device, wherein the specific terminal position is the terminal position closest to or farthest from the network device, and the timing deviation adjustment amount is the adjustment amount relative to the first common timing deviation information of the group;

A determining module, configured to determine target timing deviation information according to the timing deviation indication information, where the target timing deviation information is used to compensate at least one of the following timing deviations:

34. The terminal device of claim 33, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

35. The terminal device according to claim 33, wherein the timing deviation indication information comprises common timing deviation information for the group, the determining module being specifically configured to:

36. The terminal device according to claim 33, wherein the timing deviation indication information comprises the timing deviation adjustment amount, and wherein the determining module is specifically configured to:

37. The terminal device of claim 33, wherein the determining module is further configured to:

38. The terminal device according to claim 37, wherein the determining module is specifically configured to:

39. The terminal device according to claim 38, wherein the determining module is specifically configured to:

40. The terminal device according to claim 38, characterized in that the reference subcarrier spacing is predefined, configured by the network device, determined from the subcarrier spacing of the synchronization signal block SSB, determined from the subcarrier spacing of the system message, or determined from the subcarrier spacing of the initial downlink bandwidth portion BWP.

41. The terminal device of claim 33, wherein the group common PDCCH is scrambled by a private radio network temporary identifier, RNTI.

42. The terminal device of claim 41, wherein the dedicated RNTI is predefined or configured by a network device.

43. The terminal device of claim 41, wherein the dedicated RNTI is an RNTI for a particular terminal group.

44. The terminal device according to any of the claims 33 to 43, wherein the communication module is specifically configured to: the group common PDCCH is periodically received.

45. The terminal device of claim 44, wherein a transmission period and/or a time domain position within the transmission period of the set of common PDCCHs is predefined or configured by a network device.

46. A network device, comprising:

the communication module is used for sending a group public Physical Downlink Control Channel (PDCCH) to the terminal equipment, wherein the group public PDCCH comprises timing deviation indication information, and the timing deviation indication information is used for determining target timing deviation information by the terminal equipment;

47. The network device of claim 46, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

48. The network device of claim 46, wherein the timing offset indicated by the timing offset indication information corresponds to a reference subcarrier spacing.

49. The network device of claim 46, wherein the group public PDCCH is scrambled by a private radio network temporary identifier, RNTI.

50. The network device of claim 49, wherein the dedicated RNTI is predefined or configured by a network device.

51. The network device of claim 49, wherein the dedicated RNTI is an RNTI for a particular terminal group.

52. The network device of claim 46, wherein the communication module is specifically configured to: and periodically transmitting the group public PDCCH.

53. The network device of claim 52, wherein a transmission period of the set of common PDCCHs and/or a time domain position within the transmission period is predefined or configured by the network device.

54. A terminal device, comprising:

a communication module, configured to receive timing deviation indication information, where the timing deviation indication information corresponds to a reference subcarrier interval, and the timing deviation indication information includes at least one of the following: common timing offset information for the group, timing offset adjustment; the group is a specific terminal group, and the group public PDCCH is sent towards the specific terminal group; the common timing deviation information of the group is determined based on a specific terminal position within the coverage area of the network device, wherein the specific terminal position is the terminal position closest to or farthest from the network device, and the timing deviation adjustment amount is the adjustment amount relative to the first common timing deviation information of the group;

a determining module, configured to determine target timing deviation information according to the timing deviation indication information and a subcarrier interval currently used by the terminal device, where the target timing deviation information is used to compensate at least one of the following timing deviations:

55. The terminal device of claim 54, wherein the determining module is specifically configured to:

56. The terminal device of claim 55, wherein the determining module is specifically configured to:

57. The terminal device of claim 54, wherein the reference subcarrier spacing is predefined, and wherein the network device is configured to determine from the subcarrier spacing of the synchronization signal block SSB, from the subcarrier spacing of the system message, and from the subcarrier spacing of the initial downstream bandwidth portion BWP.

58. The terminal device of claim 54, wherein the first common timing offset information for the group is obtained from the group PDCCH or from system information.

59. The terminal device of claim 54, wherein the communication module is further configured to:

60. The terminal device of claim 59, wherein the group public PDCCH is scrambled by a private radio network temporary identifier RNTI.

61. The terminal device of claim 60, wherein the dedicated RNTI is predefined or configured by a network device.

62. The terminal device of claim 60, wherein the dedicated RNTI is an RNTI for a particular terminal group.

63. The terminal device of any of claims 59 to 62, wherein the terminal device receives a group common physical downlink control channel, PDCCH, comprising:

the terminal device periodically receives the group common PDCCH.

64. The terminal device of claim 63, wherein a transmission period of the set of common PDCCHs and/or a time domain position within the transmission period is predefined or configured by a network device.

65. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method of any of claims 1 to 13, or the method of any of claims 22 to 32.

66. A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 14 to 21.

67. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 13, or the method of any one of claims 14 to 21, or the method of any one of claims 22 to 32.

68. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 13, or the method of any one of claims 14 to 21, or the method of any one of claims 22 to 32.